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I have w211 and my command aps works , radio works , navigation works too but only sound doesn't work anyone have any idea ????


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I have w211 and my command aps works , radio works , navigation works too but only sound doesn't work anyone have any idea ????
Thanks
Firstly check the MUTE on the head unit :)

The amplifier is in the AGW in the boot (trunk) left hand side, tucked up between inner and outer wings.

Either it is dead, or the MUTE input to it has been activated (perhaps by a failed aftermarket phone kit)

The fibre connector to it has 4 electrical cables, brown CANbus, brown/red CANbus, Pink Wakeup and the last one is MUTE (it maybe yellow or blue, I can't remember)

Disconnect it from the connector and plug it back the connector back in and see if you get sound

Richard
 

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Discussion Starter #3
i try unplug the cables and i dont have sucess, yesterday my baterry are very low and now i have a new one.
When the battery is low the system dont automatic mute for economy?????

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